Finding the Third Proportional to 171,345,758 and 261,036,158

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345,758 : 261,036,158 = 261,036,158 : x
2. Step 2: Convert to fraction form
   171,345,758/261,036,158 = 261,036,158/x
3. Step 3: Cross multiply
   171,345,758x = 261,036,158 × 261,036,158
4. Step 4: Simplify right side
   171,345,758x = 68,139,875,783,400,960
5. Step 5: Solve for x
   x = 68,139,875,783,400,960/171,345,758
6. Step 6: Final answer
   x = 397,674,716.78